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Check valve

A check valve, valve housing technology, applied in valve details, control valves, valve devices, etc., can solve the problems of inability to provide flow, larger product size, difficult installation and control, etc., to ensure convenience and flow resistance. The effect of reducing and increasing the degree of freedom of design

Inactive Publication Date: 2017-08-08
HL MANDO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, since the existing check valves need to manufacture various parts through machining and stamping processes, there are problems of difficulty in manufacturing and increased processing costs
Moreover, not only the size of the product becomes larger, but also when the modulator block is equipped with a check valve, each component needs to be forced to extrude separately, so there is a problem that it is difficult to achieve accurate installation and control
[0006] In addition, each check valve installed on the modulator block needs to not only cut off the reverse flow of oil, but also need to play the role of passing sufficient flow in the forward direction according to the installation position and purpose of use. However, the valves with the same size The flow rate that can pass through the check valve is fixed, so there is a problem that the required flow rate cannot be provided

Method used

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Embodiment Construction

[0040] Embodiments of the present invention will be described in detail below with reference to the drawings. The following embodiments are provided to fully convey the technical idea of ​​the present invention to those of ordinary skill in the technical field to which the present invention belongs. The present invention is not limited to the examples provided here, but may be embodied in other forms. In order to clarify the present invention, the matters irrelevant to the description are omitted in the drawings, and it is possible to exaggerate the size of components for easy understanding.

[0041] figure 1 is an exploded perspective view showing a state in which a check valve according to a preferred embodiment of the present invention is assembled in a modulator block, figure 2 yes figure 1 The assembled three-dimensional diagram, image 3 is a sectional view showing the check valve.

[0042] refer to Figure 1 to Figure 3 , the check valve 100 includes: a valve hou...

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Abstract

A check valve is disclosed. The check valve installed in a bore of a modulator block having an inlet path and an outlet path and configured to control oil to flow in one direction, the check valve comprising: a valve housing which is installed in the bore and has an inlet and an outlet respectively configured to communicate with the inlet path and the outlet path, and of which an upper portion of the valve housing is open; a seat member which is installed in the valve housing and in which an orifice is formed; an opening and closing member provided to move forward or backward in the valve housing and configured to open or close the orifice; a guide part installed in the valve housing and configured to guide movement of the opening and closing member; a spring configured to press the opening and closing member toward the orifice; and a cap part configured to seal the open upper portion of the valve housing and fixed to the modulator block.

Description

technical field [0001] The present invention relates to a check valve, and more particularly, to a check valve provided in a hydraulic flow path of an electronically controlled braking system so as to control the flow of oil to flow in only one direction. Background technique [0002] In general, the brake system is a system that effectively prevents wheel slip that may occur during braking, sudden start, or rapid acceleration of the vehicle. It is installed on the modulator block to control the brake hydraulic pressure. The block has a plurality of solenoid valves for controlling brake hydraulic pressure transmitted from the master cylinder to the wheel cylinder side and a plurality of check valves for preventing reverse flow of oil to form a flow path of a hydraulic circuit. In recent years, there has been used an electronic brake system provided with a hydraulic supply device that receives the driver's feedback in the form of an electric signal from a pedal displacement s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T15/02
CPCF16K15/044B60T8/341F16K27/0245B60T15/02
Inventor 全仁旭
Owner HL MANDO CORP